Order of Operations

Order of Operations Name: ______

PEMDAS #2 Period: ______

Problems 1-4: Each of these problems was attempted by a student who made a mistake by not following the established order of operations or by not evaluating a power correctly. In each case, underline the step where the first mistake was made, circle the number that is wrong, explain why it is wrong, and then rework the problem correctly.

1. Evaluate:

“Solution”: 8 . 2

16

2. Evaluate:

“Solution”: 6 2- 5∙2

12 - 5∙2

12 - 10

2

3. Evaluate:

“Solution”: 122 - 20 ÷ 4

24 - 20 ÷ 4

24 - 5

19

4. Evaluate:

“Solution”: 24 ÷ 6 . 2 + 8

24 ÷ 12 + 8

2 + 8

10

Problems 5-12: Evaluate. Show all steps neatly under the problem as was done in problems 1-4.

5. 6.

7. 8.

9. 10.

11. 12.

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